/Engine/Plugins/VirtualProduction/RemoteControl/Source/RemoteControlUI/Public/UI/Filters/CustomRCFilterData.h
Or you can provide aUClass, a Category and a Color to identify the filter
FCustomTypeFilterData ( [UClass](API\Runtime\CoreUObject\UObject\UClass) * InClass, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FFilterCategory](API\Developer\ToolWidgets\Filters\FFilterCategory) > InCategory, [FLinearColor](API\Runtime\Core\Math\FLinearColor) InColor )